Hydraulic, steam, or air valve.



N. U. PERIS.

HYDRAULIC, STEAM, 0R AIR VALVE.

APPLICATION FILED IAN. 24.1911.

1,252,490. Patentd Jan. 8,I 1918.

TINTTEE STATES PATENT EETQE.

NICHOLAS U. PERIS, OF STEELTON, PENNSYLVANIA, ASSIGNOR OF ONE-THIRD TOFRANK E. HOWELLS ANI) ONE-THIRD TO ROBERT G, WARREN, BOTH OF HARRIS-BURG, PENNSYLVANIA.

HYDRAULIC, STEAM, OR AIR VALVE.

Specification of Letters Patent.

Patented Jan. 8, 1918.

T o all whom z't may concern.'

Be it known that I, NICHOLAS U. Pinus, a citizen of the United States,residing at Steelton. in the county of Dauphin and State ofPennsylvania, have invented certain new and useful Improvements inHydraulic, Steam, or Air Valves, of which the following is aspecification.

The present invention relates to valves of the steam, air, or hydraulictype and consists in the combination and arrangements of elementshereinafter described and particularly set forth in the accompanyingclaims.

The purpose of the invention is to provide a valve having means forutilizing fluid pressure from the inlet side to obtain an easy workingvalve, one free from binding to cause uneven wear, and wherein the usualwearing of the working parts will not cause leaking of the valve.

The invention has for its further purpose to provide a valve havingoppositely disposed packinggexpansible under the fluid pressure from theinlet side of the valve to form fluid-tight joints for the turning plugfor the purpose of obtaining a perfectly balanced valve, and one whereinany tendency to leakage along the turning plug will be neutralizedthrough the counter pressure in the packing chambers.

The invention is shown by way of illustration in the accompanyingdrawings, wherein,

Figure 1 is a central sectional view of the valve, with parts inelevation, and

Fig. 2 is a horizontal sectional view thereof. l

Referring to the construction in further detail the valve consists of acasing 3 constructed to provide a central chamber for the turning plug4, and a pair of opposed bronze glands or nuts 5 screw-threaded therein,as shown in Fig. 1. The casing has the usual ports 6 and 7 respectivelyfor the inlet and outlet pipes of the system.

The pair of glands 5 are apertured to receive the reduced portions 8 ofthe turning plug 4 and shoulder bearings 9 are formed between theturning plug and the glands to hold said plug in operative position andagainst. axial displacement.

A pair of packing chambers are formed continuous with the aforesaidrecesses to receive the pair of expansiblc U-shaped packings 10 ofleather, rubber, or fabric, and said packings are located to positionthe grooves 11 thereof to receive fluid pressure from the inlet port Gof the valve through the pair of apertures 12 formed in the casing, asshown in Fig. 1.

The opening 13 in the plug 4 has outwardly flaring inlet and dischargeportions 14 to the end that a flush or complete communication isestablished through the valve whereby any wearing of the passage throughthe valve stem will not take lace at those points where the passingfiuld enters and leaves the plug.

In operation the two packing rings 10 are spread through the infiuenceof the pressure in the iuid supply, and thereby substantially perfectfluid-tight joints are provided between the valve casing and the turningplug. It will also be seen that any leaking from the inlet port alongthe body of the plug will be balanced by pressure from the packingchamber.

It is obvious that those skilled in the art may vary the details 0fconstruction and arrangement of parts without departing from the spiritof my invention, and therefore I do not wish to be limited to suchfeatures except as may be required by the claims.

Having thus fully described my said invention, what I claim as new anddesire to secure by Letters Patent is 1. In a balanced valve, thecombination of a casing7 glands in said casing providing packingchambers, a plug working in said glands and casing, and U-shapedeXpansible packings in said packing chambers. said casing constructedwith apertures leading from the inlet side thereof into the packingchambers to admit Huid pressure into the grooves of the packings toexpand said packings and form fluid-tight joints, substantially as setforth.

2. In a balancedv valve the combination of of the valve into the groovesof the packings l a casing constructed With a central chamber and:forming Huid-tight joints7 substantially and having opposed recesses,glands fitting as set forth.

in said recesses and forming packing cham- In testimony whereof I affixmy signature 5 bers, a turning plug fitting 1n said glands in thepresence of two witnesses.

and the casing chamber, and U-shaped lex- NICHOLAS U. PERIS.

ible packings fitting in said packing cham- Witnesses:

bers, said casing constructed with apertures FRANK HARTACHER,

admitting uid pressure from the inlet side FRANK S. WISE.

